# RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 RATTMMOTOR’s 2.2 kW air-cooled spindle motor listing pairs an ER20 spindle with a variable-frequency drive for CNC routing and engraving setups. The listing claims a top speed of 24000 rpm and says the spindle must stay above 9000 rpm, so it is not presented as suitable for very low-speed operation. - [Original product page](https://best-deals.pro/product/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [View offer](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - Market: US - Language: en-US - Currency: USD - Brand: RATTMMOTOR - Price: 184.00 USD - Previous price: 230.00 USD - Discount: 20% - Price checked: 2026-11-14T07:10:48.274Z - Rating: 3.5 / 5 - Reviews: 4 Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store. ## At a glance - Air cooling uses a fan, avoiding the need for a water pump and water lines, according to the listing. - The supplied drive is described as converting single-phase input to three-phase output for the spindle. - The listing describes digital, analog, PID and RS485 frequency-setting options for the VFD. - The spindle speed is stated to need to remain above 9000 rpm. The advertised 24000 rpm is not a low-speed range. ## Pros - Air cooling avoids a separate water-cooling loop and its pump and plumbing. - ER20 collet format and the stated 24000 rpm top speed are aimed at CNC routing and engraving applications. - The listed VFD supports single-phase input and three-phase output, plus several frequency-setting methods. ## Cons - The stated minimum speed above 9000 rpm limits suitability for operations that need slower spindle speeds. ## Specifications ### Identity - Brand: RATTMMOTOR - Part number: RTM2.2-220 ### Motor - Rated power: 2.2KW - Horsepower: 3 hp - Voltage: 220 volts - Maximum speed: 24000 rpm - Frequency: 400HZ - Cooling: Air cooled - Collet type: ER20 - Runout claim: less than 0.01mm - Minimum stated spindle speed: above 9000 rpm - Body material: stainless steel ### VFD - Input voltage: 220V\(+/-15%\) - Output voltage: 220VAC - Input frequency: 50-60Hz - Output frequency: 0-1000Hz - Input phase: 1 phase - Output phase: 3 phase - Current: 11A ### Dimensions and installation - Weight listed: 6 kg ## Before you buy - Listing details conflict or are unconfirmed: the title and motor claims specify 220 V, while a VFD specification panel instead states 110V\(+/-15%\) input and 1100VAC output. Confirm the selected unit's drive voltage and motor compatibility before installation. The claimed runout is not an independently verified measurement. The listing also says no wiring is required for motor plug terminal 4, while separately identifying PE as an earthing terminal that must be earthed. Follow the correct wiring instructions for the actual unit. ## A good fit for - CNC router owners seeking an air-cooled ER20 spindle and variable-frequency drive combination. - Engraving or machining setups intended to run above the stated 9000 rpm minimum. ## Less suited to - Buyers whose work requires spindle speeds below 9000 rpm. - Installations that cannot confirm compatible 220 V spindle and VFD specifications from the selected listing. ## Customer feedback The supplied evidence contains aggregate ratings but no customer comments. The overall rating distribution is mixed, with both five-star and one-star categories represented. With only a small rating sample and no explanations, it cannot establish what buyers liked or disliked. Treat it as limited feedback rather than evidence of performance, particularly given the unresolved VFD voltage discrepancy. ## Frequently asked questions ### Does this listing include a VFD? The product title identifies a VFD drive and the listing provides VFD specifications, but no explicit box inventory is supplied. Confirm the package contents for the selected listing. ### What is the stated speed range? The listing gives a speed of 24000 rpm and says the spindle must stay above 9000 rpm to avoid damage. It does not support treating the unit as suitable for low-speed work. ### Is the VFD specification clearly confirmed for 220 V? No. One specification section gives 220 V input and output, while another says 110V\(+/-15%\) input and 1100VAC output. Confirm the exact drive version and its compatibility before purchase or wiring. ### Does air cooling require a water pump? The listing describes fan cooling and says a water pump and water lines are not needed. ## Alternative options - [RATTMMOTOR 2.2KW 110V VFD Air-Cooled Spindle Motor ER20 80mm \| High Speed Spindle 24000RPM+2.2KW 110V VFD Single to 3 Phase Variable Frequency Drive Converter for CNC Router](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [RATTMMOTOR 2.2KW 220V Air Cooled Spindle Motor ER20 24000RPM+VFD Drive \| Spindle and VFD Kit,Single to 3 Phase Variable Frequency Drive+80mm Spindle Motor Clamp for CNC Router Machine](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [RATTMMOTOR Square 2.2KW 220V Air Cooled Spindle Motor ER20+VFD Drive \| CNC Spindle Motor 24000RPM+2.2KW 220V Spindle Motor Speed Control Variable Frequency Drive Converter for CNC Router Machine](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [CNC Spindle Kits, 110V 2.2KW 2200W Air Cooled Spindle Motor Square CNC Spindle CNC Motor Spindle Motor + 2.2KW VFD + ER20 Collets + Aviation Wire +Power Wire](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [NymoLabs 710W CNC Router Spindle Motor with Speed Display, 6-Speed Adjustable \(7000–30000 RPM\), 65mm Diameter, 1/4" ER11 Collet, Compatible with CNC Routers, Milling and Engraving Machines](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [RATTMMOTOR 2.2KW Water Cooled VFD Spindle Motor Kit 110V ER20 \| 24000RPM High Speed Spindle Motor+2.2KW VFD 110V Inverter 3HP Variable Frequency Drive+80mm Mount for CNC Milling Machine](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [GXFCHYL 250W 110V 60Hz Electric Gear Motor Reversible High Torque Motor Adjustable Variable Gear Reducer Motor with Reduction Gearbox and Governor \(250W 5K\)](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [VEVOR 5 HP Electric Motor, 1725RPM Air Compressor Motor, CW/CCW Rotation, 1.125 inch Shaft Diameter, 2.75inch Shaft Length, 20.7N.m Torque, Single-Phase, ODP Cooling, 230V, 184T Frame](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [2HP Electric Motor Farm Duty Single Phase Motor 1725RPM 115/230V TEFC \| CW/CCW Shaft Diameter 7/8", Shaft Length 2.25" 145T Frame Rolled steel shell](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [3HP General Electric Motor 3450RPM Three Phase Motor 230V/460V CW/CCW TEFC \| Shaft Diameter 5/8",Shaft Length 1.88" 56C Frame AC Motor 2Pole 60HZ](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [2HP Electric Motor 3450RPM Single Phase Motor 56C Frame TEFC 60HZ \| General Purpose Shaft Diameter 5/8",Shaft Length 1.88" 115V/230V Rolled Steel Shell](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) - [DC Planet Gear Motor\(550KG.CM\) 6v12V18V22v 200W High Torque Mini Metal Reduction Geared Motor for DIY Robot Rotating Table Door Lock Curtain Machine Gear Reducer Combo](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) ## Add-ons - [RATTMMOTOR 80mm CNC Spindle Motor Clamp Mount Bracket Support \| Cast Aluminium with 3pcs Screws for φ80mm 1.5KW 2.2KW CNC Router Engraver Milling Water Cooled Air Cooled Spindle Motor](https://best-deals.pro/visit/rattmmotor-2-2kw-air-cooled-spindle-motor-vfd-er20) ## Images ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 1](https://best-deals.pro/i/P_9y7WwstAIypDHgI3qWAJTakR98M21DIWuhrJW3CljBcL-gM3EgOSBfS_OfG24qRBdG8pVTBnzBHnvOsRnQ6NMpAEPR8Ayw_7-9DnQQ_JTGraOgrw9w.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 2](https://best-deals.pro/i/8V0D2HZDqBxrZgGycNBnMqHVecPrdVleZcwDaLOV1h285DZk_cohEJejkNkxkgA1izPKXDfj0lY_TQ_xdqaooDLWdaSVOvvD9Gd6GGdPP93I5BEOzvUM.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 3](https://best-deals.pro/i/c4GI2K17RxKiUdXpEYQyV3VlkxPKY_kI2BfaakROB-UITPEg3l9dxO1C9aHmKyfi0TLU4RPP4i3Tiase3XbdBmMQFoHHswEkMxO_ptUyTmh_QxIZ4mP6.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 4](https://best-deals.pro/i/cV5Zp80BrmCrnI4vGFYMOv4G6pyj45YK-RuFsRoXGi2qqpKDJZNLLucebTe2xLP80WLZ_MUMQqrruzML2cJEtodm6iIj3L_gDXj-7Fcb-iPIk4N62Bw6.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 5](https://best-deals.pro/i/HRS58jsQXYrUHU6kGqU43Jj73bSP67Djhwcbmm-AB7CRjs3is2nVoFjFtAGFF-UASDzjrQ3D4q4QGWBbLnfGaYwGn9H8_cQnZdG57Xy4mgT5Vo35-gO8.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 6](https://best-deals.pro/i/awToCU39gGNZYhpJ_OMHV2qeLkYvM8O-7ZNVPg6DbxVx-gBmNhwaE5YZC_3-nVQjyLisDjqQsEfwQRom12RjTcNCIJ94uEMGaVNdDfhz4pKzDfg-ES_0.jpg) ![RATTMMOTOR 2.2 kW Air-Cooled CNC Spindle Motor and VFD, 220 V, ER20 — 7](https://best-deals.pro/i/_ncQxRBElqq-FaaQ1leQkvrVkQITjzbXTA2O7IV23h7YYTMoWzuVBzhfvMqaeCNWySJeJbVWVYh2Npu4X4t4hSPG2n-AgJb-buzzp1xpsvVkMFFMJ2zv.jpg)